{"schemaVersion":3,"id":"USN-3435-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"firefox vulnerabilities\n\nMultiple security issues were discovered in Firefox. If a user were\ntricked in to opening a specially crafted website, an attacker could\npotentially exploit these to read uninitialized memory, obtain sensitive\ninformation, bypass phishing and malware protection, spoof the origin in\nmodal dialogs, conduct cross-site scripting (XSS) attacks, cause a denial\nof service via application crash, or execute arbitrary code.\n(CVE-2017-7793, CVE-2017-7810, CVE-2017-7811, CVE-2017-7812,\nCVE-2017-7813, CVE-2017-7814, CVE-2017-7815, CVE-2017-7818, CVE-2017-7819,\nCVE-2017-7820, CVE-2017-7822, CVE-2017-7823, CVE-2017-7824)\n\nMartin Thomson discovered that NSS incorrectly generated handshake hashes.\nA remote attacker could potentially exploit this to cause a denial of\nservice via application crash, or execute arbitrary code. (CVE-2017-7805)\n\nMultiple security issues were discovered in WebExtensions. If a user were\ntricked in to installing a specially crafted extension, an attacker could\npotentially exploit these to download and open non-executable files\nwithout interaction, or obtain elevated privileges. (CVE-2017-7816,\nCVE-2017-7821)","dates":{"published":"2017-10-02T22:55:54.000Z","modified":"2026-04-22T09:39:37.712Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"firefox","name":"firefox","label":"firefox","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/firefox","purlType":"deb","versions":[{"text":"< 56.0+build6-0ubuntu0.14.04.1","noFixRecorded":false,"fixedIn":null},{"text":"< 56.0+build6-0ubuntu0.16.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 56.0+build6-0ubuntu0.14.04.1 | < 56.0+build6-0ubuntu0.16.04.1","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-3435-1","label":"ubuntu.com/security/notices/USN-3435-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2017-7793","label":"ubuntu.com/security/CVE-2017-7793","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7805","label":"ubuntu.com/security/CVE-2017-7805","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7810","label":"ubuntu.com/security/CVE-2017-7810","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7811","label":"ubuntu.com/security/CVE-2017-7811","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7812","label":"ubuntu.com/security/CVE-2017-7812","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7813","label":"ubuntu.com/security/CVE-2017-7813","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7814","label":"ubuntu.com/security/CVE-2017-7814","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7815","label":"ubuntu.com/security/CVE-2017-7815","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7816","label":"ubuntu.com/security/CVE-2017-7816","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7818","label":"ubuntu.com/security/CVE-2017-7818","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7819","label":"ubuntu.com/security/CVE-2017-7819","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7820","label":"ubuntu.com/security/CVE-2017-7820","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7821","label":"ubuntu.com/security/CVE-2017-7821","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7822","label":"ubuntu.com/security/CVE-2017-7822","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7823","label":"ubuntu.com/security/CVE-2017-7823","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2017-7824","label":"ubuntu.com/security/CVE-2017-7824","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2017-7793","CVE-2017-7805","CVE-2017-7810","CVE-2017-7811","CVE-2017-7812","CVE-2017-7813","CVE-2017-7814","CVE-2017-7815","CVE-2017-7816","CVE-2017-7818","CVE-2017-7819","CVE-2017-7820","CVE-2017-7821","CVE-2017-7822","CVE-2017-7823","CVE-2017-7824"],"downstream":[],"duplicates":[],"related":["CVE-2017-7793","CVE-2017-7805","CVE-2017-7810","CVE-2017-7811","CVE-2017-7812","CVE-2017-7813","CVE-2017-7814","CVE-2017-7815","CVE-2017-7816","CVE-2017-7818","CVE-2017-7819","CVE-2017-7820","CVE-2017-7821","CVE-2017-7822","CVE-2017-7823","CVE-2017-7824"]},"timeline":[{"kind":"published","date":"2017-10-02T22:55:54.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-04-22T09:39:37.712Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T04:59:57.063Z","stale":false,"partial":false}}